<template>
  <div class="login-container">
    <div class="login-box">
      <!--图标-->
      <div class="icon-box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!--form表单-->
      <el-form class="login-form" :model="loginForm" :rules="loginFormRules" ref="loginFormRef">
        <!--用户名-->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-icon_user"></el-input>
        </el-form-item>
        <!--密码-->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" type="password" prefix-icon="iconfont icon-3702mima"></el-input>
        </el-form-item>
        <!--按钮-->
        <el-form-item class="btn">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
  export default {
    data () {
      return {
        loginForm: {
          username: 'admin',
          password: '123456'
        },
        loginFormRules: {
          username: [
            {
              required: true,
              message: '请输入用户名',
              trigger: 'blur'
            },
            {
              min: 3,
              max: 10,
              message: '长度在 3 到 10 个字符',
              trigger: 'blur'
            }
          ],
          password: [
            {
              required: true,
              message: '请输入密码',
              trigger: 'blur'
            },
            {
              min: 6,
              max: 15,
              message: '长度在 6 到 15 个字符',
              trigger: 'blur'
            }
          ]
        }
      }
    },
    methods: {
      // 重置表单
      resetLoginForm: function () {
        this.$refs.loginFormRef.resetFields()
      },
      // 登录
      login: function () {
        this.$refs.loginFormRef.validate(async valid => {
          if (!valid) return
          var { data: res } = await this.$http.post('login', this.loginForm)
          if (res.meta.status !== 200) return this.$message.error('登录失败！')
          this.$message.success('登录成功！')
          window.sessionStorage.setItem('token', res.data.token)
          this.$router.push('/home')
        })
      }
    }
  }
</script>

<style lang="less" scoped>
  .login-container {
    background-color: #373d41;
    height: 100%;
  }
  .login-box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: relative;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    .icon-box {
      width: 130px;
      height: 130px;
      box-shadow: 0 0 10px #eee;
      border-radius: 50%;
      padding: 10px;
      background-color: #fff;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }
  .login-form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box
  }
  .btn {
    display: flex;
    justify-content: flex-end;
  }
</style>
